Columbus Crew's Eddie Gaven (12) jumps on his teammate Cole Grossman (22) after Grossman scored a goal during the first half of an MLS soccer game against the Houston Dynamo, Sunday, Aug. 19, 2012, in Houston. (AP Photo/Houston Chronicle, Karen Warren) less

Columbus Crew's Eddie Gaven (12) jumps on his teammate Cole Grossman (22) after Grossman scored a goal during the first half of an MLS soccer game against the Houston Dynamo, Sunday, Aug. 19, 2012, in Houston. ... more

HOUSTON, TX - AUGUST 19: Brad Davis #11 of the Houston Dynamo celebrates after scoring on a shot inside the box in the first half against the Columbus Crew at BBVA Compass Stadium on August 19, 2012 in Houston, Texas. less

HOUSTON, TX - AUGUST 19: Brad Davis #11 of the Houston Dynamo celebrates after scoring on a shot inside the box in the first half against the Columbus Crew at BBVA Compass Stadium on August 19, 2012 in Houston, ... more

HOUSTON, TX - AUGUST 19: Brad Davis #11 of the Houston Dynamo and Chris Birchall #8 of the Columbus Crew battle for possession of the ball in the first half at BBVA Compass Stadium on August 19, 2012 in Houston, Texas. less

HOUSTON, TX - AUGUST 19: Brad Davis #11 of the Houston Dynamo and Chris Birchall #8 of the Columbus Crew battle for possession of the ball in the first half at BBVA Compass Stadium on August 19, 2012 in ... more

HOUSTON, TX - AUGUST 19: Brad Davis #11 of the Houston Dynamo and Chris Birchall #8 of the Columbus Crew battle for possession of the ball in the first half at BBVA Compass Stadium on August 19, 2012 in Houston, Texas. less

HOUSTON, TX - AUGUST 19: Brad Davis #11 of the Houston Dynamo and Chris Birchall #8 of the Columbus Crew battle for possession of the ball in the first half at BBVA Compass Stadium on August 19, 2012 in ... more

Columbus Crew midfielder Chris Birchall (8) and Houston Dynamo midfielder/forward Macoumba Kandji (9) battle for control of the ball during the first half of an MLS soccer game, Sunday, Aug. 19, 2012, in Houston. (AP Photo/Houston Chronicle, Karen Warren) less

Columbus Crew midfielder Chris Birchall (8) and Houston Dynamo midfielder/forward Macoumba Kandji (9) battle for control of the ball during the first half of an MLS soccer game, Sunday, Aug. 19, 2012, in ... more

HOUSTON, TX - AUGUST 19: Andre Hainault #31 of the Houston Dynamo goes up over Boniek Garcia #27 of the Houston Dynamo and Justin Meram #9 of the Columbus Crew for a header at BBVA Compass Stadium on August 19, 2012 in Houston, Texas. less

HOUSTON, TX - AUGUST 19: Andre Hainault #31 of the Houston Dynamo goes up over Boniek Garcia #27 of the Houston Dynamo and Justin Meram #9 of the Columbus Crew for a header at BBVA Compass Stadium on August ... more

HOUSTON, TX - AUGUST 19: Brad Davis #11 of the Houston Dynamo stumbles over Carlos Mendes #4 of the Columbus Crew after scoring past a diving goalkeeper Andy Gruenebaum #30 of the Columbus Crew in the first half at BBVA Compass Stadium on August 19, 2012 in Houston, Texas. less

HOUSTON, TX - AUGUST 19: Brad Davis #11 of the Houston Dynamo stumbles over Carlos Mendes #4 of the Columbus Crew after scoring past a diving goalkeeper Andy Gruenebaum #30 of the Columbus Crew in the first ... more

HOUSTON, TX - AUGUST 19: Cole Grossman #22 of the Columbus Crew is congratulated by Eddie Gaven #12 of the Columbus Crew after scoring in the first half against the Houston Dynamo BBVA Compass Stadium on August 19, 2012 in Houston, Texas. less

HOUSTON, TX - AUGUST 19: Cole Grossman #22 of the Columbus Crew is congratulated by Eddie Gaven #12 of the Columbus Crew after scoring in the first half against the Houston Dynamo BBVA Compass Stadium on ... more

Columbus Crew midfielder Chris Birchall (8) and Houston Dynamo midfielder/forward Macoumba Kandji (9) battle for control of the ball during the first half of an MLS soccer game at BBVA Compass Stadium, Sunday, Aug. 19, 2012, in Houston. less

Columbus Crew midfielder Chris Birchall (8) and Houston Dynamo midfielder/forward Macoumba Kandji (9) battle for control of the ball during the first half of an MLS soccer game at BBVA Compass Stadium, Sunday, ... more

Columbus Crew midfielder Cole Grossman (22) and Houston Dynamo defender Bobby Boswell (32) go up for a header during the first half of an MLS soccer game at BBVA Compass Stadium, Sunday, Aug. 19, 2012, in Houston. less

Columbus Crew midfielder Cole Grossman (22) and Houston Dynamo defender Bobby Boswell (32) go up for a header during the first half of an MLS soccer game at BBVA Compass Stadium, Sunday, Aug. 19, 2012, in ... more

Columbus Crew midfielder Cole Grossman (22) and Houston Dynamo defender Bobby Boswell (32) go up for a header during the first half of an MLS soccer game at BBVA Compass Stadium, Sunday, Aug. 19, 2012, in Houston. less

Columbus Crew midfielder Cole Grossman (22) and Houston Dynamo defender Bobby Boswell (32) go up for a header during the first half of an MLS soccer game at BBVA Compass Stadium, Sunday, Aug. 19, 2012, in ... more

Houston Dynamo defender Andre Hainault (31) and Columbus Crew midfielder/forward Eddie Gaven (12) go up for a header during the second half of an MLS soccer game at BBVA Compass Stadium, Sunday, Aug. 19, 2012, in Houston. The game ended tied 2-2. less

Houston Dynamo defender Andre Hainault (31) and Columbus Crew midfielder/forward Eddie Gaven (12) go up for a header during the second half of an MLS soccer game at BBVA Compass Stadium, Sunday, Aug. 19, 2012, ... more

Houston Dynamo forward Cam Weaver (15) goes up against Columbus Crew defender Carlos Mendes (4) for the ball during the second half of an MLS soccer game at BBVA Compass Stadium, Sunday, Aug. 19, 2012, in Houston. The game ended tied 2-2. less

Houston Dynamo forward Cam Weaver (15) goes up against Columbus Crew defender Carlos Mendes (4) for the ball during the second half of an MLS soccer game at BBVA Compass Stadium, Sunday, Aug. 19, 2012, in ... more

Columbus Crew midfielder Chris Birchall (8) and Houston Dynamo midfielder/forward Macoumba Kandji (9) battle for control of the ball during the first half of an MLS soccer game at BBVA Compass Stadium, Sunday, Aug. 19, 2012, in Houston. less

Columbus Crew midfielder Chris Birchall (8) and Houston Dynamo midfielder/forward Macoumba Kandji (9) battle for control of the ball during the first half of an MLS soccer game at BBVA Compass Stadium, Sunday, ... more

Columbus Crew midfielder Cole Grossman (22) and Houston Dynamo defender Bobby Boswell (32) go up for a header during the first half of an MLS soccer game at BBVA Compass Stadium, Sunday, Aug. 19, 2012, in Houston. less

Columbus Crew midfielder Cole Grossman (22) and Houston Dynamo defender Bobby Boswell (32) go up for a header during the first half of an MLS soccer game at BBVA Compass Stadium, Sunday, Aug. 19, 2012, in ... more

HOUSTON, TX - AUGUST 19: Chris Birchall #8 of the Columbus Crew keeps the ball away from Ricardo Clark #13 of the Houston Dynamo in the second half at BBVA Compass Stadium on August 19, 2012 in Houston, Texas.

HOUSTON, TX - AUGUST 19: Chris Birchall #8 of the Columbus Crew keeps the ball away from Ricardo Clark #13 of the Houston Dynamo in the second half at BBVA Compass Stadium on August 19, 2012 in Houston, Texas.

HOUSTON, TX - AUGUST 19: Goalkeeper Andy Gruenebaum #30 of the Columbus Crew has a shot by Adam Moffat #16 of the Houston Dynamo slip through his hands that slipped in for a goal in the second half at BBVA Compass Stadium on August 19, 2012 in Houston, Texas. less

HOUSTON, TX - AUGUST 19: Goalkeeper Andy Gruenebaum #30 of the Columbus Crew has a shot by Adam Moffat #16 of the Houston Dynamo slip through his hands that slipped in for a goal in the second half at BBVA ... more